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Difference In Serum Creatinine Levels
My Serum Creatinine level came 1.10 mg/dl (lab reference range 0.6 - 1.30) from one lab & 1.18 mg/dl (lab reference range upto 1.4) from another lab
There is a variation of 0.08 mg/dl between the test results done from two different labs on the same day
Need to know whether Serum Creatinine test results depends on the respective lab's references ranges & could vary from lab to lab due to difference in the reference ranges
Answers (9)
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Yes, Serum Creatinine levels can slightly vary between labs, and this is completely normal.
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Why Your Results Vary (1.10 vs 1.18 mg/dL):
1. Different Laboratory Methods:
Labs may use slightly different testing machines, reagents, or calibration standards.
Some use the Jaffe method, others use enzymatic methods—these can show slight differences.
2. Reference Ranges Vary Slightly:
Each lab sets its own "normal range" based on the population it serves and the equipment used.
That’s why one lab says 0.6–1.30 mg/dL and another says up to 1.4 mg/dL.
3. Biological Factors:
Mild differences can even occur due to hydration, muscle mass, time of the day, or food intake.
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Is This a Concern?
No, your values (1.10 and 1.18) are both within normal range of both labs.
A variation of 0.08 mg/dL is clinically insignificant and very common between labs.
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What You Should Do:
For trend monitoring, try to stick to the same lab if possible.
Creatinine is just one marker — if you’re monitoring kidney function, ask your doctor to also check:
eGFR
Urine albumin-to-creatinine ratio (ACR)
Blood pressure and electrolytes
Next Steps
mentioned above
Health Tips
mentioned above
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Yes and don’t worry it’s within normal range . Drink more water as high creatinine can reflect dehydration also
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Results will differ from lab to lab.
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Diff lab use different methods to check serum creat thus their reference range differ
Not to worry if your falls within range
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Every lab QMS is different,so lab range value is slightly different
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Dr. A Raja Prasanna Kumar
Pulmonologist
46 yrs exp
Hyderabad
Yes. You have to interpret with lab ranges.
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Dr. Manuj Sondhi
Diabetologist
15 yrs exp
Greater Noida
yes. creatinine result differs in different labs as different machine have difference in reference range.
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Dr. Davra Kaushalkumar Dilipbhai
General Physician
6 yrs exp
Ahmedabad
It's normal report from both lab
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Dr. Ram Brahma Reddy
Diabetologist
6 yrs exp
Hyderabad
Yes
Next Steps
Kindly consult
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.